gmp_pow
PHP function
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(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
Raise number into power
Description
gmp_pow(GMP|int|string $num, int $exponent): GMP
Raise num into power exponent.
Parameters
numThe base number.
Parameter
exponentThe positive power to raise the
num.
Return Values
The new (raised) number, as a GMP number. The case of 0^0 yields 1.
Examples
gmp_pow() example
php
<?php
$pow1 = gmp_pow("2", 31);
echo gmp_strval($pow1) . "\n";
$pow2 = gmp_pow("0", 0);
echo gmp_strval($pow2) . "\n";
$pow3 = gmp_pow("2", -1); // Negative exp, generates warning
echo gmp_strval($pow3) . "\n";
?>The above example will output:
output
2147483648
1